@media principles, in conjunction with media queries (formerly only media styles), Regulate which designs are used and which aren't based on what media the page is becoming shown in. In my code instance, only when printing a doc should really all text be set in black from a white (the https://sociallweb.com/story4743880/the-prestashop-social-media-like-block-based-on-selected-categories-languages-pages-diaries